im shooting a commandar 70 lb dw 31 1/2" dl and arrow weight is 508 grain what speeds do you think im shooting and does my arrow weighs to much thanks a lot

I think it weighs enough and will be quiet enoughto kill a freezer full of deer..Good huntingb and good luck

Rough guess about 263 fps

I am thinking 270 - 275.


That is a looooong draw length.


Arrow weight is fine,especially for that much poundage and draw length.That would probably nock a deer over.[]

Yeah...archers with 27" draws would kill to be as tall as you. Thats a long power stroke. Can't say exactly how fast your arrows will be going, but they will still be going after they punch through the deer....real question is will you be able to mine them back up out of the ground!

The approximate arrow speed will be 264.1ft/sec.
[/align]The KE of your arrow is 78.7ft-lbs.
[/align]Your arrow speed is 180.1MPH.
[/align]
http://thearcheryhut.com

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You should be in he high 270's, possiblylow 280's,with your draw length. Ontarget had 292.

However, I've found their numbers to be about 10 to 15 fps faster than what I get when I chrono my bow.

Archers Advantage had 278 and that is why I said 270 - 275.

I know you usually have solid number TFOX. I wasn't questioning that. Just supplying what Ontarget gave and what I've found.

Did you use the smooth or speed mods?